Browsing Artikler by Title
Now showing items 91-110 of 1064
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Brachiopods and trilobites from the Ordovician Lower Hovin Group (Arenig/Llanvirn), Hølonda area, Trondheim Region, Norway: new and revised taxa and paleogeographic interpretation
(NGU Bulletin (414), Journal article, 1989)Thirteen brachiopod and 13 trilobite taxa in 15 collections from the Hølonda Limestone and Nyplassen Formation of the Lower Hovin Group confirm the late Arenig-early Llanvirn age of these rocks. New monotypic and apparently ... -
Brannerite, a new mineral in Norway.
(NGU (200), Journal article, 1957)Ved urandundersøkelser på Modum, ble mineralet brannerit påvist for første gang i Norge. Der forekommer ved hovedveien 300 m vest for Haugfoss bru. Mineralet opptrer på mer eller mindre åpne sprekker i en presset grønnskifer ... -
Bredemte sjøer eller subglaciale avsetninger?
(NGU (255), Journal article, 1968)The present paper is a criticism and a contradiction of J. Gjessing's theory (Gjessing, 1960, 1966) of a subglacial formation of deposits that are actually terraces and bottom sediments of a former glacial (ice-dammed) ... -
Brerandstadier og avsmeltingsforhold i Repparfjord-Stabbursdal- området, Vest-Finnmark. En deglaciasjonsprofil fra fjord til vidde.
(NGU (213), Journal article, 1961)The purpose of this article is given a description of two prominent active substages of the deglaciation period of the last ice-age in Finnmark, Northern Norway. The area concerned is situated on the peninsula between the ... -
Brittle deformation history of fault rocks on the Fosen Peninsula, Trøndelag, Central Norway.
(NGU Bulletin (421), Journal article, 1991)Late and post-Caledonian fault deformation of rock units on the Fosen Peninsula follows a time sequence wherein lower crustal ductile deformation was followed by several episodes of brittle fragmentation, some with coeval ... -
Building stone of central and southern Ethiopia: deposits and resource potential
(NGU Bulletin (436), Journal article, 2000)The bedrock geology of Ethiopia exhibits a variety of rock types that can potentially be developed for building stone production. The ETHIONOR project has so far included investigation of such resources in the southern and ... -
Building-stone resources in Eritrea: results from introductory work in the NGU-EGS co-operation programme
(NGU Bulletin (436), Journal article, 2000)Several building-stone quarries and prospects in Eritrea were visited during September 1998, as a part of the Norwegian.Eritrean ERINOR co-operation project. The bedrock geology of Eritrea comprises a variety of rocks, of ... -
Byssonychia? sp. från Karmøy.
(NGU (155), Journal article, 1940)Material: Cast of bivlved specimen and some impressions of the exterior. Diagnosis: Equivalved, laterally very unsymmetrical, form elliptical, height greater than length. Margo cardinalis, the hinge line, straight, somewhat ... -
Børgefjell. Beskrivelse til det berggrunnsgologiske gradteigskart J.19 - 1: 100 000
(NGU; Skrifter (298 ; 8), Journal article, 1973)Three main structural units are present: 1. The Precambrian (Svecofennokarelian) basement of the Børgefjell Window. \". Low grade (greenschist facies) Lower Paleozoic rocks belonging to the Seve-Køli Nappe Complex. 3. The ... -
C14-datings referring to shore lines, transgressions, and glacial substages in Northern Norway. (A supplement to papers of 1960 and 1961 by the author).
(NGU (215), Journal article, 1962)Denne publikasjonen er en foreløpig meddelelse som i det vesentlige dreier seg om en serie C14-dateringer utført av R. Nydal ved Laboratoriet for Radiologisk Datering i Trondheim. Dateringene synes å gi viktige opplysninger ... -
Caledonian and Baikalian tectonic structures on Varanger Peninsula, Finnmark, Norway, and coastal areas of Kola Peninsula, NW Russia
(NGU Bulletin (431), Journal article, 1996)Based on data compiled from biostratigraphy, radiometric dating and palaeomag- netic studies, contractional deformation and low-grade metamorphism in the Neo- proterozoic to earliest Palaeozoic successions of coastal areas ... -
Caledonian granitoids in the Frøya-Froan area, central Norway.
(NGU Bulletin (427), Journal article, 1995) -
Caledonian structural evolution and tectonostratigraphy in the Rombak - Sjangeli Window and its covering sequences, northern Scandinavian Caledonides
(NGU Bulletin (415), Journal article, 1989)The tectonostratigraphy and Caledonian structural evolution of an area in and around the north-eastern corner of the Rombak-Sjangeli Window (RSW) in the northern Scandinavian Caledonides is described. The investigated area ... -
Caledonian structural geology and tectonics of East Hinnøy, North Norway.
(NGU Bulletin (396), Journal article, 1984)Rocks of east Hinnøy comprise three Caledonian tectonic elements: (1) parautochthonous pre-Caledonian crystalline basement (Lofoten block); (2) allochtonous Precambrian gneisses, probably derived from the Lofoten block, ... -
Caledonian sulphide deposits and minor iron-formations from the southern Trondheim region, Norway.
(NGU (340), Journal article, 1978)Within the southern and central parts of the Trondheim region of the Norwegian Caledonides a great number of small, stratabound cupriferous pyrite deposits are confined to mafic metavolcanics of the Gula, Støren and Fundsjø ... -
Cambro-Silurian fossils in Finnmark, Northern Norway.
(NGU (213), Journal article, 1961)Underkambriske(?), mellomkambriske, overkambriske(?) og underordoviciske (tremadoc) fossiler (trilobitter, brakiopoder, graptolitter, spor og problematika) er funnet på Digermulhalvøya i Tana og silurske fossiler ... -
Carbonate sand deposition along the coast of southern Norway
(NGU Bulletin (427), Journal article, 1995) -
Change in chemical composition of rock samples during preparation for analysis.
(NGU (300), Journal article, 1973)It has been shown that up to 3% of the volume of rock samples may escape as clust during their preparation (crushing and grinding) for chemical analysis. The mineral and chemical composition of the escaping rock dust may ... -
Chemical (U-Th-Pb) dating of monazite: Analytical protocol for a LEO 1450VP scanning electron microscope and examples from Rogaland and Finnmark, Norway
(NGU Bulletin (446), Journal article, 2006)Monazite is a common accessory mineral and is a valuable mineral chronometer on account of its relatively high U and Th contents, negligible common Pb, and a high closure temperature. Because all the Pb present in monazite ... -
Chemical and petrographic characterization of ilmenite and magnetite in oxide-rich cumulates of the Sokndale Region, Rogaland, Norway
(NGU Bulletin (436), Journal article, 2000)Igneous ilmenite and magnetite in some oxide-rich cumulates of the Sokndal region show chemical features and microtextures that reflect the progress of magmatic evolution and subsolidus re-equilibration. These features ...